/// <summary>
/// 生成分页数据
/// </summary>
/// <param name="dt"></param>
/// <param name="PageSize">每页大小</param>
/// <param name="pageNumber">页码</param>
/// <returns></returns>
public static PagingListData <DataRow> ToPagingData(this DataTable dt, int PageSize, int pageNumber)
{
PagingListData <DataRow> pd = new PagingListData <DataRow>
{
pagenumber = pageNumber,
pagesize = PageSize,
total = dt.Rows.Count
};
if (pageNumber < 1)
{
pageNumber = 1;
}
/*
* int minIndex = PageSize * (pageNumber - 1) + 1;
* int maxIndex = PageSize * pageNumber;
*/
int minIndex = PageSize * (pageNumber - 1);//从零开始
int maxIndex = PageSize * pageNumber - 1;
int rowMaxIndex = (pd.total - 1) >= maxIndex ? maxIndex : (pd.total - 1);
pd.rows = new List <DataRow>();
for (int i = minIndex; i <= rowMaxIndex; i++)
{
pd.rows.Add(dt.Rows[i]);
}
return(pd);
}
/// <summary>
/// 生成分页数据
/// </summary>
/// <param name="list"></param>
/// <param name="PageSize">每页大小</param>
/// <param name="pageNumber">页码</param>
/// <returns></returns>
public static PagingListData <T> ToPagingData <T>(this List <T> list, int PageSize, int pageNumber) where T : class, new()
{
if (pageNumber < 1)
{
pageNumber = 1;
}
if (PageSize < 1)
{
PageSize = 10;
}
PagingListData <T> pld = new PagingListData <T>();
pld.pagenumber = pageNumber;
pld.pagesize = PageSize;
pld.total = list.Count;
/*
* int minIndex = PageSize * (pageNumber - 1) + 1;
* int maxIndex = PageSize * pageNumber;
*/
int minIndex = PageSize * (pageNumber - 1); //从零开始
int maxIndex = PageSize * pageNumber - 1; //1210
int rowMaxIndex = (pld.total - 1) >= maxIndex ? maxIndex : (pld.total - 1);
List <T> pageList = new List <T>();
for (int i = minIndex; i <= rowMaxIndex; i++)
{
pageList.Add(list[i]);
}
pld.rows = pageList;
return(pld);
}
